Cadwaladers

You're walking down Mermaid Quay on a decent day, and you've got that craving for something cold and decent. Cadwaladers is exactly where you end up. This isn't some twee tourist trap—it's a proper Welsh institution that's been doing ice cream right since the 1920s. They make their own stuff, which means it's got actual body to it; none of that cheap aerated nonsense. The flavours rotate seasonally, and they're not mucking about with weird combinations—you'll find classics done brilliantly alongside more interesting stuff. Families pile in here, locals grab cones, and it all works because the ice cream is genuinely good and the spot's prime without being obnoxious about it.